#!/usr/bin/env python
# -*- coding:utf-8 -*-
class Province(object):
    country="zhongguo"
    def __init__(self,name):
        self.name=name

shanxi=Province('山西')
shandong=Province('山东')
print id(shanxi.country)
print id(shandong.country)
print shanxi.name
print shanxi.country